Check the appropriate box below
if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933
(§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth
company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period
for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition.

On November 7, 2018, Amplify Energy Corp., a Delaware corporation (the Company), issued a press release reporting the Companys financial
and operating results for the quarter ended September 30, 2018. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information contained in this Item 2.01 shall not be deemed to be filed for purposes of Section 18 of the Securities Exchange Act of
1934, as amended (the Exchange Act), or otherwise subject to the liabilities of that section, and shall not be deemed to be incorporated by reference into any of the Companys filings under the Securities Act of 1933, as amended
(the Securities Act), or the Exchange Act, whether made before or after the date hereof and regardless of any general incorporation language in such filings, except to the extent expressly set forth by specific reference in such a
filing.

Item 7.01. Regulation FD Disclosure.

On November 7, 2018, the Company issued a press release announcing, among other things, its updated 2018 guidance. A copy of the press release
is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

On November 7, 2018, the Company posted to its website an update to
its hedging overview presentation entitled Supplemental Presentation  Commodity Hedging Overview. The updated hedging presentation includes hedging transactions with respect to the years 2018 through 2019, and may be accessed
by going to the Companys Investor Relations website at http://investor.amplifyenergy.com/ and selecting Events and Presentations.

The information
contained in this Item 7.01 shall not be deemed to be filed for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, and shall not be deemed to be incorporated by reference into
any of the Companys filings under the Securities Act or the Exchange Act, whether made before or after the date hereof and regardless of any general incorporation language in such filings, except to the extent expressly set forth by specific
reference in such a filing.

Cautionary Note Regarding Forward-Looking Statements

This Current Report on Form 8-K, including the exhibit hereto, include forward-looking statements. All statements, other than statements
of historical facts, included in this Current Report on Form 8-K that address activities, events or developments that the Company expects, believes or anticipates will or may occur in the future are forward-looking statements. Terminology
such as will, would, should, could, expect, anticipate, plan, project, intend, estimate, believe, target,
continue, potential, the negative of such terms or other comparable terminology are intended to identify forward-looking statements. These statements include, but are not limited to, statements about financial restructuring
or strategic alternatives and the Companys expectations of plans, goals, strategies (including measures to implement strategies), objectives and anticipated results with respect thereto. These statements are based on certain assumptions made
by the Company based on its experience and perception of historical trends, current conditions, expected future developments and other factors it believes are appropriate in the circumstances, but such assumptions may prove to be inaccurate. Such
statements are also subject to a number of risks and uncertainties, many of which are beyond the control of the Company, which may cause the Companys actual results to differ materially from those implied or expressed by the forward-looking
statements. These include risks and uncertainties relating to, among other things: the Companys results of evaluation and implementation of strategic alternatives; the Companys ability to maintain relationships with suppliers, customers,
employees and other third parties following its emergence from bankruptcy; the Companys efforts to reduce leverage; the Companys level of indebtedness, including its ability to satisfy its debt obligations; the Companys ability to
generate sufficient cash flow to make payments on its obligations and to execute its business plan; continued low or further declining commodity prices and demand for oil, natural gas and natural gas liquids; the Companys ability to access
funds on acceptable terms, if at all, because of the terms and conditions governing the Companys indebtedness or otherwise; and changes in commodity prices and hedge positions and the risk that the Companys hedging strategy may be
ineffective or may reduce its income. Please read the Companys filings with the Securities and Exchange Commission (the SEC), including Risk Factors in the Companys Annual Report on Form 10-K, and if
applicable, the Companys Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, which are available on the Companys Investor Relations website at http://investor.amplifyenergy.com/ or on the SECs
website at http://www.sec.gov, for a discussion of risks and uncertainties that could cause actual results to differ from those in such forward-looking statements. You are cautioned not to place undue reliance on these forward-looking statements,
which speak only as of the date of this Current Report on Form 8-K. All forward-looking statements in this Current Report on Form 8-K are qualified in their entirety by these cautionary statements. Except as required by law, the
Company undertakes no obligation and does not intend to update or revise any forward-looking statements, whether as a result of new information, future results or otherwise.

HOUSTON, November 7, 2018Amplify Energy Corp. (OTCQX: AMPY) (Amplify or the Company) announced today its operating and
financial results for the third quarter 2018 and updated guidance for the full year 2018.

Key Third Quarter Events



Announced the closing of a new revolving credit facility with an initial borrowing base of $425 million,
reduced borrowing costs and increased flexibility to return capital to shareholders and pursue go-forward strategy



Release of approximately $61.5 million in cash from the plugging and abandonment trust related to the
Companys offshore California properties (the Beta Decommissioning Trust Account)



Announced a $37 million capital project to increase oil production at the Companys Bairoil field in
the Rockies

Key Third Quarter Operational Highlights



During the third quarter this year we generated the following:

o

Daily production of 152.4 MMcfe/d which was above the midpoint of quarterly guidance

o

Net cash provided by operating activities of $32 million
for the quarter, compared to the midpoint of
guidance of $34 million

o

Adjusted EBITDA of $40 million that was above the midpoint of the guidance range of $36 million to
$42 million

o

Free cash flow of $28 million that was within the guidance range of $25 million to $31 million



Maintained total debt to annualized Adjusted EBITDA of 1.9x



As of November 5, 2018, reduced net debt to $221 million, inclusive of $73 million of cash on hand

During the third quarter of 2018, Amplify achieved key milestones that were important steps towards implementing our go-forward strategy, said Ken Mariani, President and Chief Executive Officer of Amplify. Our new credit facility provides us with meaningful cost of capital savings, along with flexibility to fund future
development and acquisition activity. In addition, we were able to release $61.5 million from the Beta Decommissioning Trust Account. We are putting some of our liquidity to work with a $37 million capital project in the Bairoil Field. I
am proud of the strides that our team has made thus far, and I look forward to working with the

Board as we continue to evaluate the best use of our liquidity and free cash flow to fund investment opportunities in offshore California and the Rockies, further reduce our debt and execute on a
plan to return capital to shareholders.

Key
Financial Results

$ in millions

Third Quarter2018

Second Quarter2018

Average daily production (MMcfe/d)

152.4

168.9

Total revenues

$

85.4

$

90.9

Total assets

$

841.3

$

848.3

Net Income (loss)

($

2.6

)

($

25.3

)

Adjusted EBITDA (a non-GAAP financial measure)

$

39.7

$

45.8

Total debt (1)

$

294.0

$

314.0

Total debt / Adjusted EBITDA (2)

1.9x

1.7x

Net cash provided by (used in) operating activities

$

32.3

$

42.1

Total capital

$

7.5

$

23.4

(1)

As of September 30, 2018 and June 30, 2018, respectively

(2)

Annualized for the respective quarter ended

New Revolving Credit Facility with Initial $425 Million Borrowing Base and Liquidity Update

On November 2, 2018, Amplify, together with its subsidiaries, entered into a new senior secured reserve-based revolving credit facility with Bank of
Montreal, as administrative agent (the new credit facility) with an initial borrowing base of $425 million. BMO Capital Markets, Bank of America Merrill Lynch, Citibank, Regions Bank and U.S. Bank are the joint lead arrangers for
the new credit facility.

The borrowing base will be redetermined on a semi-annual basis with the first redetermination expected on April 1, 2019.
Borrowings under the new credit facility will bear interest at LIBOR plus 200 bps to 300 bps, which is an improvement of 100 bps from the previous facility. The new credit facility has a five-year term to maturity in November 2023.

The new credit facility improves our financial flexibility and cost of capital as we continue to evaluate and execute on our strategic plan. We would
especially like to express our appreciation for the support from BMO Capital Markets and the syndicate of lenders, and we look forward to working with them as partners in connection with our growth opportunities, said Martyn Willsher, Senior
Vice President and Chief Financial Officer.

As of November 5, 2018, Amplify had total debt of $294 million under its new credit facility, with
a borrowing base of $425 million. Amplifys liquidity was $202 million as of November 5, 2018, consisting of $73 million of cash on hand and available borrowing capacity of $129 million (including the impact of
$2.4 million in outstanding letters of credit).

Receipt of Cash from Beta Decommissioning Trust Account

On October 10, 2018, Amplify announced the receipt of approximately $61.5 million from the Beta Decommissioning Trust Account. The cash release to
Amplifys balance sheet was made pursuant to an order of the U.S. Bankruptcy Court dated February 9, 2018, which allowed for

2

the release of Beta cash subject to certain conditions that have since been satisfied. Following the cash release, Betas decommissioning obligations remain fully supported by A-rated surety bonds and $90 million of cash. This release represented a significant first step in better aligning the funding structure of Betas long-term decommissioning liability with its ultimate
duration.

Comparison of Third Quarter Guidance vs Actual Results

3Q 2018 Guidance (1)

3Q 2018 (2)

Low

High

Actuals

Net Average Daily Production

Oil (MBbls/d)

8.6



9.2

8.5

NGL (MBbls/d)

3.9



4.1

4.0

Natural Gas (MMcf/d)

72.0



76.4

77.5

Total (MMcfe/d)

147.0



156.1

152.4

Commodity Price Differential / Realizations (Unhedged)

Oil Differential ($ / Bbl)

$

3.00



$

3.30

$

2.47

NGL Realized Price (% of WTI NYMEX)

41

%



46

%

48

%

Natural Gas Realized Price (% of Henry Hub)

95

%



99

%

102

%

Gathering, Processing and Transportation Costs

Oil ($ / Bbl)

$

0.60



$

0.70

$

0.82

NGL ($ / Bbl)

$

4.25



$

4.75

$

4.43

Natural Gas ($ / Mcf)

$

0.50



$

0.60

$

0.55

Total ($ / Mcfe)

$

0.37



$

0.47

$

0.44

Average Costs

Lease Operating ($ / Mcfe)

$

1.91



$

2.03

$

1.96

Taxes (% of Revenue) (3)

5.5

%



6.5

%

5.5

%

Recurring Cash General and Administrative ($ / Mcfe)
(4)

$

0.47



$

0.50

$

0.49

Net Cash Provided by Operating Activities ($MM) (5)

$

34

$

32

Adjusted EBITDA ($MM) (6)

$

36



$

42

$

40

Cash Interest Expense ($MM)

$

4



$

6

$

5

Capital Expenditures ($MM)

$

6



$

8

$

8

Free Cash Flow ($MM) (6)

$

25



$

31

$

28

(1)

Guidance based on NYMEX strip pricing as of July 27, 2018; Average prices of $67.89 / Bbl for crude oil
and $2.83 / Mcf for natural gas for 2018

(2)

Actual results for 3Q18 impacted by adoption of new GAAP revenue recognition standard that reduced revenue and
GP&T, but had no net impact on Net Cash Provided by Operating Activities or Adjusted EBITDA

Net Cash Provided by Operating Activities guidance does not include certain restructuring and reorganization
expenses or changes in working capital

(6)

Adjusted EBITDA and Free Cash Flow are non-GAAP financial measures.
Please see Use of Non-GAAP Financial Measures for a description of Adjusted EBITDA and Free Cash Flow and the reconciliation to the most comparable GAAP financial measure

Production Update

During the third quarter of 2018,
Amplify produced 152.4 MMcfe/d, which was above the midpoint of our guidance for the quarter. Third quarter production was impacted by the Companys scheduled annual turnaround for maintenance at the Bairoil Field, which shut in production for
approximately 10 days. Additionally, in early October the Company initiated a

3

scheduled 6-day maintenance turnaround in the Beta Field, which will impact fourth quarter production. Both of these turnarounds were completed
successfully, and production has since returned to anticipated levels reflected in previously issued guidance.

Operations and Capital Spending Outlook

As recently announced, Amplifys board of directors has approved a $37 million capital project to increase oil production at the
Companys Bairoil field in the Rockies by approximately 900 Boe/d. This investment will expand CO2 recycling capacity at the facility by approximately 60 MMcf/d, and will allow the Company
to bring currently shut-in wells back online. The Company anticipates that the expanded facility will be completed and operational by the fourth quarter of 2019. The expansion will also allow the Company to
drill four additional wells in 2019, with a total of 59 further drilling locations identified and supported by a recent 3D seismic survey.

At the
Companys Beta field, the Company has recently added a second drilling and workover crew (rig crew). The second rig crew will initially focus on workover activities to increase current production, but it will also be utilized as a
drilling crew in the event that a Beta development program is approved for 2019.

In addition, the Company is currently participating in 10 gross (0.5
net) wells in the Eagle Ford, with initial production from these wells expected in the first quarter of 2019. The previous 10 gross wells that were brought online earlier this year have consistently outperformed the Companys internal type
curves, with IP-30 oil production rates averaging above 1,300 barrels per day (gross) and delivering rates of return greater than 100%. The Company anticipates similar results for the current wells.

Amplifys capital spend for the third quarter was approximately $7.5 million, in-line with quarterly
guidance. Third quarter capital was allocated 43% in East Texas, 35% in the Rockies and 11% in the Eagle Ford, with the remainder focused primarily on workover and infrastructure related projects in California. The Bairoil expansion project will
result in increased capital spending in the fourth quarter 2018 as the Company orders equipment for the plant upgrade. All capital spending updates have been reflected in our fourth quarter and revised full year guidance.

Fourth Quarter and Full Year 2018 Guidance

The following
guidance included in this press release is subject to the cautionary statements and limitations described under the Forward-Looking Statements caption at the end of this press release. Amplifys updated 2018 guidance is based on its
current expectations regarding capital expenditure levels and on the assumption that market demand and prices for oil and natural gas will continue at levels that allow for economic production of these products.

4

Amplifys fourth quarter and full year guidance has been adjusted for the strategic capital investment
in Bairoil. A summary of the guidance is presented below:

4Q 2018E (1)

FY 2018E (1)

Low

High

Low

High

Net Average Daily Production

Oil (MBbls/d)

8.2



8.7

8.9



9.6

NGL (MBbls/d)

3.6



3.8

4.0



4.3

Natural Gas (MMcf/d)

66.0



70.1

76.6



81.4

Total (MMcfe/d)

136.7



145.1

154.2



163.7

Commodity Price Differential / Realizations (Unhedged)

Oil Differential ($ / Bbl)

$

2.70



$

3.00

$

2.60



$

2.90

NGL Realized Price (% of WTI NYMEX)

42

%



47

%

40

%



45

%

Natural Gas Realized Price (% of Henry Hub)

95

%



99

%

95

%



99

%

Gathering, Processing and Transportation Costs

Oil ($ / Bbl)

$

0.60



$

0.70

$

0.60



$

0.70

NGL ($ / Bbl)

$

4.20



$

4.70

$

4.00



$

4.50

Natural Gas ($ / Mcf)

$

0.50



$

0.60

$

0.45



$

0.55

Total ($ / Mcfe)

$

0.37



$

0.47

$

0.36



$

0.46

Average Costs

Lease Operating ($ / Mcfe)

$

2.15



$

2.35

$

1.86



$

2.06

Taxes (% of Revenue) (2)

5.5

%



6.5

%

5.5

%



6.5

%

Recurring Cash General and Administrative ($ / Mcfe)
(3)

$

0.51



$

0.56

$

0.52



$

0.55

Net Cash Provided by Operating Activities ($MM) (4)

$

30

$

145

Adjusted EBITDA ($MM) (5)

$

31



$

37

$

161



$

167

Cash Interest Expense ($MM)

$

4



$

6

$

18



$

20

Capital Expenditures ($MM)

$

10



$

12

$

56



$

58

Free Cash Flow ($MM) (5)

$

16



$

22

$

85



$

91

(1)

Guidance based on NYMEX strip pricing as of October 26, 2018; Average prices of $67.26 / Bbl for crude oil
and $2.92 / Mcf for natural gas for 2018

Net Cash Provided by Operating Activities guidance does not include certain restructuring and reorganization
expenses or changes in working capital

(5)

Adjusted EBITDA and Free Cash Flow are non-GAAP financial measures.
Please see Use of Non-GAAP Financial Measures for a description of Adjusted EBITDA and Free Cash Flow and the reconciliation to the most comparable GAAP financial measure

Hedging Update

Since Amplifys previous hedge
update on August 8, 2018, the Company has not made any further additions to its hedge position. The following table reflects the hedged volumes under Amplifys commodity derivative contracts and the average fixed or floor prices at which
production is hedged for October 2018 through December 2019, as of November 7, 2018.

Amplifys financial statements and related footnotes will be available in its Quarterly Report on Form 10-Q for
the quarter ended September 30, 2018, which Amplify expects to file with the Securities and Exchange Commission on November 7, 2018.

Conference Call

Amplify will host an investor
teleconference today at 10:00 a.m. Central Time to discuss these operating and financial results. Interested parties may join the webcast by visiting Amplifys website, www.amplifyenergy.com, and clicking on the webcast link or by
dialing (833) 883-4379 at least 15 minutes before the call begins and providing the Conference ID: 9465818. The webcast and a telephonic replay will be available for fourteen days following the call and may be
accessed by visiting Amplifys website, www.amplifyenergy.com, or by dialing (855) 859-2056 and providing the Conference ID: 9465818.

About Amplify Energy

Amplify Energy Corp. is an
independent oil and natural gas company engaged in the acquisition, development, exploration and production of oil and natural gas properties. The Companys operations are focused in the Rockies, offshore California, East Texas / North
Louisiana and South Texas. For more information, visit www.amplifyenergy.com.

6

Forward-Looking Statements

This press release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and
Section 21E of the Securities Exchange Act of 1934, as amended. All statements, other than statements of historical facts, included in this press release that address activities, events or developments that Amplify expects, believes or
anticipates will or may occur in the future are forward-looking statements. Terminology such as will, would, should, could, expect, anticipate, plan,
project, intend, estimate, believe, target, continue, potential, the negative of such terms or other comparable terminology are intended to identify forward-looking
statements. Amplify believes that these statements are based on reasonable assumptions, but such assumptions may prove to be inaccurate. Such statements are also subject to a number of risks and uncertainties, most of which are difficult to predict
and many of which are beyond the control of Amplify, which may cause Amplifys actual results to differ materially from those implied or expressed by the forward-looking statements. Please read the Companys filings with the Securities and
Exchange Commission, including Risk Factors in its Annual Report on Form 10-K, and if applicable, its Quarterly Reports on Form 10-Q and Current Reports on
Form 8-K, and other public filings and press releases for a discussion of risks and uncertainties that could cause actual results to differ from those in such forward-looking statements. All forward-looking
statements speak only as of the date of this press release. All forward-looking statements in this press release are qualified in their entirety by these cautionary statements. Amplify undertakes no obligation and does not intend to update or revise
any forward-looking statements, whether as a result of new information, future results or otherwise.

Use of
Non-GAAP Financial Measures

This press release and accompanying schedules include the non-GAAP financial measures of Adjusted EBITDA and Free Cash Flow. The accompanying schedules provide a reconciliation of these non-GAAP financial measures to their most
directly comparable financial measure calculated and presented in accordance with GAAP. Amplifys non-GAAP financial measures should not be considered as alternatives to GAAP measures such as net income,
operating income, net cash flows provided by operating activities or any other measure of financial performance calculated and presented in accordance with GAAP. Amplifys non-GAAP financial measures may
not be comparable to similarly titled measures of other companies because they may not calculate such measures in the same manner as Amplify does.

Adjusted EBITDA. Amplify defines Adjusted EBITDA as net income or loss, plus interest expense; income tax expense; depreciation, depletion and
amortization; impairment of goodwill and long-lived assets; accretion of asset retirement obligations; losses on commodity derivative instruments; cash settlements received on expired commodity derivative instruments; losses on sale of assets;
unit-based compensation expenses; exploration costs; acquisition and divestiture related expenses; amortization of gain associated with terminated commodity derivatives, bad debt expense; and other non-routine
items, less interest income; gain on extinguishment of debt; income tax benefit; gains on commodity derivative instruments; cash settlements paid on expired commodity derivative instruments; gains on sale of assets and other, net; and other non-routine items. Adjusted EBITDA is commonly used as a supplemental financial measure by management and external users of Amplifys financial statements, such as investors, research analysts and rating
agencies, to assess: (1) its operating performance as compared to other companies in Amplifys industry without regard to financing methods, capital structures or historical cost basis; (2) the ability of its assets to generate cash
sufficient to pay interest and support Amplifys indebtedness; and (3) the viability of projects and the overall rates of return on

7

alternative investment opportunities. Since Adjusted EBITDA excludes some, but not all, items that affect net income or loss and because these measures may vary among other companies, the
Adjusted EBITDA data presented in this press release may not be comparable to similarly titled measures of other companies. The GAAP measure most directly comparable to Adjusted EBITDA is net cash provided by operating activities.

Free Cash Flow. Amplify defines Free Cash Flow as Adjusted EBITDA, less cash income taxes; cash interest expense; and total capital expenditures. Free
cash flow is an important non-GAAP financial measure for Amplifys investors since it serves as an indicator of the Companys success in providing a cash return on investment. The GAAP measure most
directly comparable to distributable cash flow is net cash provided by operating activities.